Home / 7,164.72-9,887.40-4,647.84

Finding the Fourth Proportional to 7,164.72, 9,887.40 and 4,647.84

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Solution

The fourth proportional to 7,164.72, 9,887.40 and 4,647.84 is: 6,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.72 : 9,887.40 = 4,647.84 : x
  2. Step 2: Convert to fraction form
    7,164.72/9,887.40 = 4,647.84/x
  3. Step 3: Cross multiply
    7,164.72x = 9,887.40 × 4,647.84
  4. Step 4: Simplify right side
    7,164.72x = 45,955,053.22
  5. Step 5: Solve for x
    x = 45,955,053.22/7,164.72
  6. Step 6: Final answer
    x = 6,414.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.